Spellbook
Legal AI for contracts at the speed of commerce

Spellbook is an AI-powered contract review and drafting tool designed for transactional lawyers and in-house legal teams. It integrates directly into Microsoft Word, enabling users to draft, redline, and review contracts using leading large language models like GPT-5 and Claude. Over 4,500 teams across 80+ countries use the platform, which is built with enterprise-grade privacy and GDPR compliance.
Spellbook integrates as a plugin within Microsoft Word, using GPT-5, Claude, and other LLMs to review, draft, and redline contracts in real time.
Transactional lawyers and in-house legal teams
Background.
- Status
- launched
- Business model
- subscription
- Company
- Spellbook Legal Inc.
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